6645 sgsmsg relies on undefined behaviour of loop-scoped variables

@@ -663,10 +663,11 @@
 {
         char    buffer[LINE_MAX], * token;
         uint_t  bufsize;
         char    *token_buffer;
         int     escape = 0;
+        int     len = 0;
 
         if ((token_buffer = malloc(LINE_MAX)) == 0) {
                 (void) fprintf(stderr, Errmsg_nmem, strerror(errno));
                 return (1);
         }

@@ -674,11 +675,10 @@
 
         line = 1;
 
         while ((token = fgets(buffer, LINE_MAX, fddesc)) != NULL) {
                 char    defn[PATH_MAX], * _defn, * str;
-                int     len;
 
                 switch (*token) {
                 case '#':
                 case '$':
                         if (escape) {